\documentclass[standalone]{standalone}  % 关键：用 standalone 类
\usepackage{tikz, amsmath, amssymb, amsthm,  mathrsfs}
\tikzset{every picture/.style={line width=0.75pt}} 
\usepackage{tikz, amssymb} % 必须加载tikz宏包
\usepackage[utf8]{inputenc} % 支持特殊字符
\tikzset{every picture/.style={line width=0.75pt}} 

\begin{document}  

\begin{tikzpicture}[x=0.75pt,y=0.75pt,yscale=-1,xscale=1]
%uncomment if require: \path (0,300); %set diagram left start at 0, and has height of 300

%Straight Lines [id:da6569213468298066] 
\draw    (138,85.5) -- (138,123) ;
\draw [shift={(138,125)}, rotate = 270] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;
\draw [shift={(138,83.5)}, rotate = 90] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;
%Curve Lines [id:da357800932164004] 
\draw    (186.1,91.27) .. controls (198.63,138.54) and (219.63,60.01) .. (223.88,116.74) ;
\draw [shift={(224,118.5)}, rotate = 266.25] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-3.29) .. controls (6.95,-1.4) and (3.31,-0.3) .. (0,0) .. controls (3.31,0.3) and (6.95,1.4) .. (10.93,3.29)   ;
\draw [shift={(186,89)}, rotate = 77.82] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-4.9) .. controls (6.95,-2.3) and (3.31,-0.67) .. (0,0) .. controls (3.31,0.67) and (6.95,2.3) .. (10.93,4.9)   ;

% Text Node
\draw (80,67.4) node [anchor=north west][inner sep=0.75pt]    {$B=( B-M) \cup M$};
% Text Node
\draw (112,122.4) node [anchor=north west][inner sep=0.75pt]    {$( B-M) \cup ( M\cup ( A-B)) =A\cup B.$};
% Text Node
\draw (121,96.4) node [anchor=north west][inner sep=0.75pt]    {$\operatorname{id}$};
% Text Node
\draw (226,84.4) node [anchor=north west][inner sep=0.75pt]    {$\varphi $};


\end{tikzpicture}
 
\end{document}